| original |
Early Devonian |
|
Brazil(Maranhao) |
Brito,I.M. Silurian and Devonian acritarcha from Maranhao Basin, Brazil |
1967 |
| details |
Nd |
|
Nd |
Brito,I.M. The acritarchs |
1967 |
| details |
Gedinnian |
Siegenian |
Algeria |
Jardin©,S. et al. Acritarchs of Late Silurian-Devonian of Algerian Sahara. |
1972 |
| original |
Jurassic |
|
Canada(W.Canada) |
Pocock,S.A.J. Palynology of the Jurassic sediments of western Canada. Part 2. Marine species. |
1972 |
| details |
Late Frasnian |
Early Famennian |
Belgium |
Bouckaert,J. et al. The Frasnian-Famennian boundary in Belgium |
1972 |
| details |
Ludlovian |
Late Devonian |
Algeria |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Ludlovian |
Eifelian |
Spain |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Emsian |
Givetian |
Brazil |
Jardin©,S. Microplankton (Acritarchs), and the stratigraphic limits of the Upper Silurian to Upper Devonian. |
1972 |
| details |
Late Gothlandian |
Early Devonian |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Nd |
|
Nd |
Loeblich,A.R.,Jr. et al. Index to the genera, subgenera, and sections of the Pyrrhophyta, 7. |
1974 |
| details |
Middle Ludlovian |
|
Argentina |
Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Wenlockian |
|
Indiana |
Wood,G.D. Acritarchs, spores, and plant detritus from the Silurian, (Wenlockian) Waldron Shale of southeastern Indiana. |
1978 |
| details |
Nd |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Late Devonian |
Early Carboniferous |
China(Tibet) |
Gao,L. Late Devonian and Early Carboniferous acritarchs from Nyalam County, Xizang, (Tibet), China. |
1984 |
| details |
Early Gothlandian |
|
Indiana |
Wood,G.D. Biostratigraphic and paleoecologic significance of acritarchs from the Waldron Formation, (Lower Silurian), midcontinent, United States |
1984 |
| details |
Early Gothlandian |
|
Kentucky |
Wood,G.D. Biostratigraphic and paleoecologic significance of acritarchs from the Waldron Formation, (Lower Silurian), midcontinent, United States |
1984 |
| details |
Early Gothlandian |
|
Tennessee |
Wood,G.D. Biostratigraphic and paleoecologic significance of acritarchs from the Waldron Formation, (Lower Silurian), midcontinent, United States |
1984 |